®

OWNERS MANUAL

DIVERSITY WIRELESS SYSTEM

Produced by On The Right Wavelength for Samson Technologies Corp.

Copyright 1999, Samson Technologies Corp.

Printed October 1999

Samson Technologies Corp.575 Underhill Blvd.P.O. Box 9031Syosset, NY 11791-9031Phone: 1-800-3-SAMSON (1-800-372-6766)Fax: 516-364-3888

Table of Contents

Introduction 3

System Features 4

QuickStart 6

Guided Tour - M32 Receiver 7

Guided Tour - T32 Beltpack Transmitter 10

Guided Tour - H32 Handheld MicrophoneTransmitter 12

Setting Up and Using the Micro 32 System 14

Appendix A: T32 Multipin Wiring Guide and Chart 18

Appendix B: Channel Plan 19

Specifications 20

Introduction

Congratulations on purchasing the Samson Micro 32 Wireless System! Although thisproduct is designed for easy operation, we suggest you first take some time to go throughthese pages so you can fully understand how we’ve implemented a number of uniquefeatures.

Every wireless system consists of at least two components—a transmitter and a receiver,both of which must be tuned to the same channel (that is, the same radio frequency) inorder to operate correctly.* The Samson Micro 32 system is frequency-agile; that is, it iscapable of operating over any of a number of selectable frequencies, making it eminentlysuitable for touring setups or where multiple wireless systems need to be usedsimultaneously. Specifically, it offers 32 different operating frequencies within each ofthree bands (low, medium, or high), allowing up to six different Micro 32 systems to beused simultaneously in one band. The system you have purchased contains an M32micro diversity receiver and either our T32 belt-pack transmitter (for instrument or lavaliermicrophone or headset applications) or H32 hand-held microphone transmitter (available ina wide variety of popular capsules).

The Micro 32 system is specially designed to enable the production of professional audiotracks to accompany your video shoot or live broadcast. The use of a handheld mictransmitter or lavalier microphone connected to a beltpack transmitter effectively isolatesthe performer from unwanted ambient sounds such as video camera motor noise or roomsounds made by the camera operator or video crew. Because the M32 receiver isextremely small and lightweight, it can be attached easily to any video camera using thesupplied strip of velcro, and can even be powered directly by the camera’s own 12-voltpower supply, if available.

In this manual, you’ll find a QuickStart section (for those of you familiar with wireless audiosystems) as well as more detailed description of the features of the Micro 32 system, aguided tour through all components, step-by-step instructions for setting up your system,wiring diagrams and tables, a channel plan and full specifications. If your Micro 32 systemwas purchased in the United States, you’ll also find a warranty card enclosed—don’t forgetto fill it out and mail it! This will enable you to receive online technical support and willallow us to send you updated information about this and other Samson products in thefuture. If your Micro 32 system was purchased outside of the U. S., contact your localdistributor for warranty details. Also, be sure to check out our website(http://www.samsontech.com) for complete information about our full product line.

SPECIAL NOTE for U.S. purchasers: Should your Micro 32 system ever require servicing,a Return Authorization number (RA) is necessary. Without this number, the unit will not beaccepted. If your Micro 32 system was purchased in the United States, please callSamson at 1-800-372-6766 for a Return Authorization number prior to shipping your unit.If possible, return the unit in its original carton and packing materials. If your Micro 32system was purchased outside of the U. S., contact your local distributor for servicinginformation.

* Your receiver and transmitter have been factory preset to utilize the same channel.A listing of the available channels and their corresponding UHF frequencies is presentedin Appendix B on page 17 in this manual.

3

System Features

Designed for use in both live sound and sound contracting applications, the Samson UHFMicro 32 Wireless System provides a high performance, cost effective solution, utilizingstate-of-the-art technology in wireless communications. Its main features include:

•Three bands of operation (low, medium and high), with 32 different available channelsper band, all operating in the less crowded UHF bandwidth. Up to six Micro 32 systems(each tuned to a different frequency within the same band) can be used in the samelocation without interference. (U.S. users, who can access both the low and mediumbands, have access to 64 channels and can use up to twelve Micro 32 systems in asingle location.)

•Optimized for use in videography applications, the Micro 32 system is highlycustomizable, combining a UHF “walkaround” receiver with your choice of beltpack orhandheld microphone transmitters.

•Using the supplied velcro strip, the compact, lightweight M32 receiver can be easilyattached to any video camera and can even derive 12-volt power from the camera (ifavailable), making it easy to integrate into any traveling or fixed installation video system.

•The M32 micro diversity receiver includes a pair of tuned antennas and provides bothbalanced and unbalanced outputs (with a three-position output level switch) and aheadphone monitor output with continuously adjustable level control. The receiver alsoincludes an audio peak LED, dual receiver indicators, and an RF strength meter.

•Technological breakthrough usage of SAW (Surface Acoustic Wave) filters (similar tothose used in high-end television receivers) for extremely precise and stable tuning.

•True Diversity technology maximizes active range (up to 300 feet) and reduces potentialinterference problems through automatic switching between two independent receivers.

•Built-in companding noise reduction in all components for crystal-clear sound withminimized background noise and hiss.

•Transmitters utilize PLL synthesized VCO technology to minimize spurious emissionsand provide “popless” muting, which turns off the audio signal while leaving the carriersignal on. They use standard 9-volt batteries, with battery life of approximately 8 hours.Transmitters also provide a convenient three-segment multicolor Battery Strength LEDmeter, allowing you to monitor the remaining power in the installed battery.

•The H32 hand-held microphone transmitter is available in a selection of popular miccapsules, including:

Samson QMIC dynamicAudix OM-5 dynamicElectro Voice ND 757A N/DYM dynamicElectro Voice ND 857A N/DYM dynamicShure SM85 condenserShure SM87 condenser

4

5

System Features

•Compact “beeper-sized” T32 belt-pack transmitter is extremely lightweight (less than 4ounces with a 9-volt battery installed). It provides a mini-XLR jack for connection toguitar cables or a variety of popular headsets and lavalier microphones, including:

Samson QE headset*Samson QV headsetAKG C-410 headsetAudio-Technica ATM-75 headsetAudio-Technica MT-350 lavalierAudio-Technica Pro-35X wind microphoneAudio-Technica AT-831 lavalierCountryman IsoMax headsetCrown CM-311(E) headsetSamson ECM-40 lavalierSennheiser MKE-2 lavalierSony ECM-44 lavalierSony ECM-55 lavalierSony ECM-77 lavalier

•All components have rugged construction that ensures reliable operation in even the mostdemanding performance environments.

* Optimized for aerobics workouts, this headset is recommended for usage inhigh-humidity environments such as physical fitness centers.

QuickStart

If you’ve had some prior experience using wireless systems, these QuickStart instructionswill get you up and running with your Micro 32 system in a matter of minutes! Detailedinstructions for setting up and using your Micro 32 system can be found on page 12 of thismanual, and the “Guided Tour” sections on pages 5 - 11 provide full descriptions of allMicro 32 component controls and displays.

1. Make sure that the supplied M32 receiver and T32 or H32 transmitter are factorypreset to the same band (High, Medium or Low).

2. Physically place the M32 where it will be used (if desired, it can be connected to yourvideo camera using the supplied velcro strip) and extend both of its antennas vertically.

3. If you are using the T32 with a lavalier or headset microphone, make the physicalconnection between its mini-XLR input connector and the microphone you are using.

4. Place a fresh battery in the transmitter and M32 receiver (or connect the M32 DC inputto your video camera’s 12 volt output or optional AC300R adapter) and turn it onmomentarily to check it; the multifunction LED will light green if the battery is sufficientlystrong.

5. Turn your audio system off and make the physical cable connection between the M32balanced or unbalanced output jack (if necessary, both can be used simultaneously) andthe line or mic level audio input of your video camera, amplifier or mixer. If you are usingthe balanced output jack, be sure to set the M32 Audio Output Level switch correctly.

6. Determine the best Group and Channel to use by setting the M32 meter to “RF” andobserving it while using the supplied plastic screwdriver to select different Groups andavailable Channels within that Group (refer to Appendix B on page 17 in this manual for acomplete channel plan). Select a Group that has the greatest number of suitableChannels and the Channel within that Group that has the greatest signal strength.Remember that, when two or more transmitters and receivers are being used at the samelocation, all devices must be set to the same Group (each to a different Channel).

7. Turn on the transmitter and use the supplied plastic screwdriver to set it to the sameGroup and Channel you have selected for the receiver. Its multifunction LED will blinkwhen selecting an unavailable Channel within a Group.

8. Set the audio gain structure by speaking or singing into your mic (or playing yourinstrument) at a normal performance level while slowly raising the audio input control ofyour video camera or audio output level of your amplifier or mixer until the desired level isreached. If necessary, use the supplied plastic screwdriver to adjust the transmitter’s AFLevel trimpot in order to increase or decrease its signal level.

9. Do a walkaround through the intended area of coverage while observing the M32’s RFmeter. Reposition it (or its antennas) or select a different Group/Channel as necessary.

10. If you hear any spurious noise from the M32 output when the transmitter is turned off,use the supplied plastic screwdriver to adjust the M32 Squelch level control, slowly turningit clockwise until the point at which the noise disappears.

6

7

Guided Tour - M32

1: A/B Receiver LEDs - When signal isbeing received, one of these will be litorange, showing you whether the (left) “A”or (right) “B” receiver is currently beingused. The M32 constantly scans its twoantennas and automatically selectswhichever is receiving the strongest,clearest signal. This True Diversityswitching is completely inaudible, but iteffectively increases overall range whilevirtually eliminating potential interferenceand phase cancellation problems.

2: Meter - This set of three multicolor LEDsacts as a meter, indicating either batterypower or the strength of the incoming RFsignal. This meter can also be disabledaltogether to conserve battery power. See#15 on the next page for more information.

3: Peak LED - This LED lights red whenoutput signal from the M32 is at the onset ofclipping (that is, when it is on the verge ofbeing distorted). If you see this light duringoperation, move the microphone furtheraway or lower the output level of your instru-ment or transmitter. For more information,see the “Setting Up and Using the Micro 32System” section on page 12 in this manual.

4: Power switch - Use this to turn the M32power on and off.

5: SQ (Squelch) Level control - This control determines the maximum range of theM32 before audio signal dropout. Although it can be adjusted using the supplied plasticscrewdriver, it should normally be left at its factory setting. See the “Setting Up andUsing the Micro 32 System” section on page 12 in this manual for more information.

6: Battery holder - Insert a standard 9-volt alkaline battery here, being sure to observethe plus and minus polarity markings shown. We recommend the Duracell MN 1604type battery. Although rechargeable Ni-Cad batteries can be used, they do not supplyadequate current for more than four hours. WARNING: Do not insert the batterybackwards; doing so can cause severe damage to the M32 and will void your warranty.

7: Plastic screwdriver - Specially designed for use in adjusting the M32 Squelch Levelcontrol (see #5 above). See the “Setting Up and Using the Micro 32 System” section onpage 12 in this manual for more information.

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Guided Tour - M32

8: Antennas (A and B) - The antennamountings allow full rotation for optimumplacement. In normal operation, bothantennas should be placed in a verticalposition. Both antennas can be foldedinward for convenience when transportingthe M32. See the “Setting Up and Usingthe Micro 32 System” section on page 12in this manual for more information.

9: DC input - This jack will accept a DC input voltage of 6 - 13 volts (inner connection [tip]positive, outer connection [sleeve] ground) from your video camera, if available. Connectthe optional Samson AC300R adapter here to charge a rechargeable 9-volt Ni-Cad battery.

10: Unbalanced output* - Use this unbalanced (1K Ohm max.) 1/8" (3.5 mm) mini-phonejack when connecting the M32 to consumer (-10) audio equipment. Wiring is as follows:tip hot, sleeve ground. If your video camera has stereo audio inputs, you’ll need to use aY-adapter that has a 1/8" (3.5 mm) mini-phone plug at one end and dual male RCA-typeplugs at the other end.

11: Audio Output Level switch - Sets the audio output level of both the balanced andunbalanced outputs (see #10 above and #14 below) to -30 dBm (mic level), -20 dBm, or-10 dBm (line level). See the “Setting Up and Using the Micro 32 System” section on page12 in this manual for more information.

12: Level control - This knob sets thelevel of the audio signal being sent tothe headphones output (see #13below).

13: Headphones output - Connect astereo headphone to this standard1/8" (3.5 mm) mini-phone jack in order

to monitor the signal being output by the M32. We recommend the use of 30 ohmheadphones. The level of the headphone signal can be set by adjusting the Level control(see #12 above). Maximum output is 240 mW @ 30 ohms).

14: Balanced output* - Use this electronically balanced low impedance (600 Ohm)mini-XLR jack when connecting the M32 to professional (+4) audio equipment. Pin wiringis as follows: Pin 1 ground, Pin 2 high (hot), and Pin 3 low (cold).

15: Meter switch - This three-position switch determines the function of the M32 meter(see #2 on the previous page). In the left “RF” position, the meter indicates the strength ofthe incoming RF signal. In the center “BATTERY” position, the meter indicates relativebattery power, showing whether the installed battery is at low (red), mid (yellow) or high(green) strength. (Note: When the red “low” indicator lights, performance is degraded andthe battery needs to be replaced). In the right “OFF” position, the meter is disabledaltogether, thus conserving battery power.

* If required, both the unbalanced and balanced outputs can be used simultaneously.

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Guided Tour - M32

16: Group selector - Use the suppliedplastic screwdriver to set this to the desiredGroup.

17: Channel selector - Use the suppliedplastic screwdriver to set this to the desiredChannel. Note that only certain Channelsare available within each Group; for moreinformation, see Appendix B on page 17 inthis manual.

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UHF MICRO DIVERSITY RECEIVER

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Guided Tour - T32

1: Antenna - This permanently attached transmitter “pig tail” antenna should be fullyextended for normal operations. See the “Setting Up and Using the Micro 32 System”section on page 12 in this manual for more information about antenna positioning.

2: Multifunction LED - This multicolor LED serves several functions. First, it lightswhenever the T32 is powered on (see #7 on the next page). Secondly, whenever the T32is powered on, it shows the relative battery power, indicating whether the installed batteryis at low (red), mid (orange) or high (green) strength. When it lights steadily red (“low”),RF performance is degraded and the battery needs to be replaced. Finally, the LEDblinks whenever an unavailable Channel within a Group is selected. See #5 on thefollowing page for more information and Appendix B on page 17 in this manual for acomplete channel plan.

3: Input connector - The input device (instrument cable, lavalier mic, or headset mic) isconnected to this mini-XLR jack. See Appendix A on page 16 for more information.

4: Group selector - Use the supplied plastic screwdriver (see #9 on the following page)to set this to the desired transmission frequency Group.

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Guided Tour - T325: Channel selector - Use the supplied plastic screwdriver to set this to the desiredChannel. When two or more transmitters and receivers are being used in the samelocation, they should be set up to use different Channels within the same Group. Note thatthe T32 multifunction LED (see #2 on the preceding page) blinks whenever an unavailableChannel within a Group is selected. See the “Setting Up and Using the Micro 32 System”section on page 12 and Appendix B on page 17 in this manual for more information.

6: AF Level control (trimpot) - If necessary, you can use the supplied plasticscrewdriver (see #9 below) to raise or lower the T32 input level. See the “Setting Up andUsing the Micro 32 System” section on page 12 in this manual for more information.

7: Power on-off switch* - Use this to turn the T32 on or off (to conserve battery power,be sure to leave it off when not in use).

8: Battery holder - Insert a standard 9-volt alkaline battery here, being sure to observethe plus and minus polarity markings shown. We recommend the Duracell MN 1604 typebattery. Although rechargeable Ni-Cad batteries can be used, they do not supplyadequate current for more than four hours. WARNING: Do not insert the batterybackwards; doing so can cause severe damage to the T32 and will void your warranty.

9: Plastic screwdriver - Specially designed for use in adjusting the T32 AF Level control(see #6 above) and/or M32 Squelch control (see #5 on page 5). See the “Setting Up andUsing the Micro 32 System” section on page 12 in this manual for more information.

10: Battery door - The T32 battery door is hinged and not intended to be removed fromthe transmitter case. To open it, press gently inwards on the two tabs marked “Open” oneither side of the door. See the “Setting Up and Using the Micro 32 System” section onpage 12 in this manual for more information.

11: Audio on-off switch - When set to the “on” position, audio signal is transmitted.When set to the “off” position, the audio signal is muted. Because the carrier signalremains during muting, no “pop” or “thud” will be heard. Note that turning this off does notturn off the transmitter power—it is simply a way to temporarily mute the transmission ofaudio signal. If you don’t plan on using the transmitter for extended periods, turn off thetransmitter power by using the power on-off switch (see #7 above).

* Be sure to mute the audio signal at your external mixer or amplifier before turningtransmitter power on or off, or an audible pop may result.

OFF AUDIO ON

23 11 1

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Guided Tour - H32

1: Audio on-off switch - When set tothe “on” position, audio signal istransmitted. When set to the “off”position, the audio signal is muted.Because the carrier signal remains duringmuting, no “pop” or “thud” will be heard.Note that turning this off does not turn offthe transmitter power—it is simply a wayto temporarily mute the transmission ofaudio signal. If you don’t plan on usingthe transmitter for extended periods, turnoff the transmitter power by using thepower on-off switch (see #3 below).

2: Multifunction LED - This multicolorLED serves several functions. First, itlights whenever the H32 is powered on(see #3 below). Secondly, whenever theH32 is powered on, it shows the relativebattery power, indicating whether theinstalled battery is at low (red), mid(orange) or high (green) strength.When it lights steadily red (“low”), RFperformance is degraded and the batteryneeds to be replaced. Finally, the LEDblinks whenever an unavailable Channelwithin a Group is selected. See #7 onthe following page for more informationand Appendix B on page 17 in thismanual for a complete channel plan.

3: Power on-off switch* - Use this to turn the H32 on or off (to conserve battery power,be sure to leave it off when not in use).

4: AF Level control (trimpot) - This input sensitivity control has been factory preset toprovide optimum level for the particular microphone capsule provided with your Micro 32system and so we recommend that this not be adjusted manually. If necessary, however,you can use the supplied plastic screwdriver to raise or lower the input level. See the“Setting Up and Using the Micro 32 System” section on page 12 in this manual for moreinformation.

* Be sure to mute the audio signal at your external mixer or amplifier before turningtransmitter power on or off, or an audible pop may result.

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Guided Tour - H32

5: Battery holder - Insert a standard9-volt alkaline battery here, being sure toobserve the plus and minus polaritymarkings shown. We recommend theDuracell MN 1604 type battery. Althoughrechargeable Ni-Cad batteries can beused, they do not supply adequate currentfor more than four hours.WARNING: Do not insert the batterybackwards; doing so can cause severedamage to the H32 and will void yourwarranty.

Note: As shown in the illustration on theleft, the controls for setting the H32 Groupand Channel indicated below are locatedon the opposite side to the batterycompartment:

6: Group selector - Use the suppliedplastic screwdriver to set this to thedesired transmission frequency Group.

7: Channel selector - Use the suppliedplastic screwdriver to set this to thedesired Channel. When two or moretransmitters and receivers are being usedin the same location, they should be set upto use different Channels within the sameGroup. Note that the H32 multifunctionLED (see #2 on the preceding page) blinkswhenever an unavailable Channel within aGroup is selected. See the “Setting Upand Using the Micro 32 System” sectionon page 12 and Appendix B on page 17 inthis manual for more information.

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Setting Up and Using theMicro 32 SystemThe basic procedure for setting up and using your Micro 32 Wireless System takes only afew minutes:

1. For the Micro 32 system to work correctly, both the receiver and transmitter must beset to the same band (labeled “Low,” “Medium” and “High”). Remove all packing materials(save them in case of need for future service) and check to make sure that the suppliedM32 receiver and T32 or H32 transmitter are factory preset to the same band. If these donot match, contact your distributor or, if purchased in the United States, call SamsonTechnical Support at 1-800-372-6766.

2a. If you are using a 9-volt battery to power the M32, press gently down on the batterydoor release (on the front of the M32, on the word “Open”) and swing the door open inorder to access the battery compartment . Note that the door is hinged and is notintended to be removed from the receiver case. Insert a 9-volt battery, being careful toobserve the polarity markings. Warning: Reversing the battery polarity may causepermanent damage to your receiver. Turn the power switch “On” and set the Meterswitch to “BATTERY.” The green “HIGH” meter LED will light if the battery is sufficientlystrong. Once you’ve verified battery strength, turn the power switch “Off” again.

2b. If you are using the optional Samson AC300R adapter or your video camera’s 12-voltpower supply to power the M32, connect it to the M32 DC input jack. On the front of theM32, press gently down on the battery door release (on the word “Open”) and swing thedoor open note that the door is hinged and is not intended to be removed from thereceiver case). Make sure the power switch is set to “Off.”

3. If you are using the T32 beltpack transmitter with a permanently attached instrumentcable, skip ahead to step 4a below. If you are using the T32 with a lavalier or headsetmicrophone, make the physical connection between its mini-XLR input connector and themicrophone you are using. Because the mini-XLR plug is “keyed,” you’ll need to rotate it acertain way to get it to “mate” with the connector mounted on the T32; then push straightdown until you hear a click. To remove the mini-XLR connector, press in the black dot onthe plug and pull straight out (do not use force!). Never pull on the wire, only the plugitself (with the black dot pressed in).

4a. If your system contains a T32 belt-pack transmitter, make sure its pigtail antenna isextended fully and then press gently inwards on the two tabs marked “Open” (on the sidesof the case) to open the battery door, which is hinged and not intended to be removedfrom the transmitter case. Please use care when opening this door as undue force willdestroy the hinge.

4b. If your system contains a H32 handheld transmitter, unscrew the bottom section ofthe microphone by turning it counterclockwise and then slide it off.

5. Place a fresh 9-volt alkaline battery in the transmitter battery holder, taking care toobserve the polarity markings. If you are using a T32 belt-pack transmitter, gently replacethe battery door by swinging it up and pressing until it clicks. If you are using a H32handheld transmitter, replace the bottom section of the microphone by sliding it on andthen screwing it back on. Whichever transmitter you are using, leave it off for the moment.

15

Setting Up and Using theMicro 32 System

6. To check the battery strength, turn on the power to the T32 or H32 transmitter (using itsPower on-off switch). The multifunction LED will light green if the battery is sufficientlystrong. Once you’ve established that the installed battery has sufficient power, use thePower on-off switch to turn the transmitter off again.

7. Make the physical cable connection between the output of your M32 receiver and theaudio input of your video camera or audio amplifier or mixer, being careful to set the AudioOutput Level switch so that the signal is strong but not distorting. Normally, it should be setto the “-30” position when connecting to a mic-level input and to the “-20” or “-10” positionwhen connecting to a line-level input. If required, both the balanced and unbalancedoutputs can be used simultaneously. Leave your amplifier (and/or mixer) off at this time.

8. Next, select the Group and Channel for your transmitters and receivers. When two ormore transmitters and receivers are being used at the same location, all devices must beset to the same Group (though each transmitter/receiver pair must use its own Channel) orintermodulation noise may occur. With the power to your transmitter off, set the M32 Meterswitch to the left “RF” position, then use the supplied plastic screwdriver to set the M32Group and Channel trimpots to an available channel within a Group. (Refer to Appendix Bon page 17 in this manual for a complete channel plan.) Next, turn on the transmitter andset it to the same Group and Channel (its multifunction LED will blink whenever anunavailable Channel within a Group is selected). One or more segments in the M32 metershould then light. If the “HIGH” segment lights, the M32 is receiving an optimally strongRF signal. If the “LOW” segment lights (indicating a relatively weak RF signal), try adifferent Channel within the Group or a different Group/Channel altogether—you will findthat some have stronger signals than others. Always pick the Channel that has thestrongest signal.

9. Next, it’s time to set the audio gain structure. Turn on your connected amplifier and/ormixer but keep its volume all the way down. Make sure that your transmitter is unmuted bysetting its Audio switch to “On.” If you are using the H32 transmitter or if you are using theT32 transmitter with a connected lavalier microphone or headset, speak or sing into the micat a normal performance level while slowly raising the volume of your amplifier/mixer untilthe desired level is reached. If you are using the T32 transmitter with a connected instru-ment, play the instrument at normal performance level while slowly raising the volume ofyour amplifier/mixer until the desired level is reached. If you are using a lavalier micro-phone, correct placement is critical to sound quality.We recommend that you position it as shown in theillustration on the right—as close to your mouth aspossible but off to one side (to minimize nasality) andunobstructed by clothing. Bear in mind also thatomnidirectional microphones (mics which pick upsignal from all directions) are more prone to feedbackproblems than unidirectional (cardioid or supercar-dioid) ones; in general, you can avoid feedback bytaking care not to use any microphone directly in frontof a PA speaker (if this is unavoidable, you can tryusing an equalizer to attenuate those high frequencieswhich are causing the feedback “squealing”).

INPUT

SAMSON

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16

Setting Up and Using theMicro 32 System10. If you hear distortion at the desired volume level, first check to see whether the red“Peak” LED on the M32 is lighting. If it is not, make sure that the gain structure of youraudio system is correctly set (consult the owners manual of your mixer and/or amplifier fordetails). If the red “Peak” LED does light, do the following:

• If you are using an H32 transmitter, use the supplied plastic screwdriver to turn its AFLevel control (trimpot) slowly counterclockwise (towards the “Min” position) until thedistortion disappears.

• If you are using a T32 transmitter with connected lavalier microphone or headset, itsAF Level control has been factory preset to provide optimum level for the particularlavalier or headset model being used and so no adjustment should be necessary. Anydistortion present should therefore simply be a matter of the microphone being tooclose to the mouth; try moving it further away. If this does not solve the problem, usethe supplied plastic screwdriver to turn the AF Level control (trimpot) on the T32 slowlycounterclockwise until the distortion disappears. If you are using a T32 transmitterwith an instrument such as electric guitar or bass, lower the output level of theinstrument until the distortion disappears. Alternatively, you can use the suppliedplastic screwdriver to turn the AF Level control (trimpot) on the T32 slowlycounterclockwise until the distortion disappears.

11. Conversely, if you hear a weak, noisy signal at the desired volume level, again makesure that the gain structure of your audio system is correctly set (consult the ownersmanual of your mixer and/or amplifier for details). If it is and the signal coming from theM32 is still weak and/or noisy, do the following:

• If you are using an H32 transmitter, use the supplied plastic screwdriver to turn the AFLevel control (trimpot) on the transmitter slowly clockwise (towards the “Max” position)until the signal reaches an acceptable level.

• If you are using a T32 transmitter with connected lavalier microphone or headset, itsLevel control has been factory preset to provide optimum level for the particularlavalier or headset model being used and so no adjustment should be necessary.Any weakness of signal should therefore simply be a matter of the microphone beingtoo far from the mouth; try moving it closer. If this does not solve the problem, use thesupplied plastic screwdriver to turn the AF Level control (trimpot) on the T32 slowlyclockwise until the signal reaches an acceptable level. If you are using a T32transmitter with an instrument such as electric guitar or bass, raise the output level ofthe instrument until a good signal is achieved. Alternatively, you can use the suppliedplastic screwdriver to turn the AF Level control (trimpot) on the T32 slowly clockwiseuntil the signal reaches an acceptable level.

12. If you want to use headphones to monitor the transmission, connect a standard“Walkman”-type 30 ohm headphone to the M32 headphone output and adjust the Levelcontrol until the desired level is reached.

13. When first setting up the Micro 32 system in a new environment, it’s always a goodidea to do a walkaround in order to make sure that coverage is provided for your entireperformance area. Accordingly, turn on both the transmitter and M32 receiver. If you areusing a video camera, use the supplied velcro strip to attach the M32 to the side of the

Setting Up and Using theMicro 32 System

camera. If not, physically place the M32 in the position in which it will be used. Next, withthe transmitter unmuted, walk through the entire area that will need to be covered whilespeaking, singing, or playing your instrument. As you do so, you will find that the orange“A” and “B” LEDs on the M32 occasionally switch on or off, always showing you whichantenna is receiving the stronger signal. The basic rule of thumb for successful wirelessinstallations is to always try to minimize the distance between transmitter and receiver asmuch as possible and also to try to maintain “line of sight” between the two (so that theperson using the transmitter can see the receiver antennas). You may also be able toimprove RF reception by relocating the receiver or repositioning one or both of the receiverantennas.

13. Temporarily turn down the level of your mixer/amplifier system and turn off the powerto your transmitter, leaving the M32 on. Then restore the previously set level of yourmixer/amplifier. With the transmitter off, the receiver output should be totally silent—if it is,skip ahead to the next step. If it isn’t (that is, if you hear some noise), you may need toadjust the M32 Squelch level control. When the Squelch level control is at its minimumsetting, the Micro 32 system always provides maximum range without dropout; however,depending upon the particular environment your system is used in, you may need toreduce that range somewhat in order to eliminate band noise when the transmitter isturned off. To do so, use the provided screwdriver to rotate the Squelch level controlcompletely counterclockwise (to the “Min” position), then slowly turn it clockwise until thenoise disappears. If no noise is present at any position, leave it at its fully counterclock-wise “Min” position (so as to have the greatest overall range available).

If you have followed all the steps above and are experiencing difficulties, contact yourlocal distributor or, if purchased in the United States, call Samson Technical Support(1-800-372-6766) between 9 AM and 5 PM EST.

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MANUFACTURER MODEL PIN 1 PIN 2 PIN 3SAMSON ECM40 SHIELD WHITE JUMP TO PIN 2

SAMSON QE/QV SHIELDRED JUMP TO PIN 2WHITE

AKG C410 SHIELDWHITE JUMP TO PIN 2RED

AUDIO TECHNICA AT831 YELLOW x 2RED x 2 JUMP TO PIN 2SHIELD

AUDIO TECHNICA ATM75 YELLOW x 2RED x 2 JUMP TO PIN 2SHIELD

AUDIO TECHNICA ATPRO8HE YELLOW x 2N/C RED x 2SHIELD

AUDIO TECHNICA ATPRO35X YELLOW x 2RED x 2 JUMP TO PIN 2SHIELD

AUDIO TECHNICA MT350 SHIELD WHITE JUMP TO PIN 2

COUNTRYMAN ISOMAX SHIELD WHITE JUMP TO PIN 2

CROWN CM311(E) SHIELDRED JUMP TO PIN 2WHITE

SENNHEISER MKE2 SHIELDJUMP TO PIN 2BLUE RED

SENNHEISER MKE40 SHIELDJUMP TO PIN 2BLUE RED

SENNHEISER MKE48 SHIELDJUMP TO PIN 2BLUE RED

SONY ECM44/55 SHIELDRED JUMP TO PIN 2WHITE

SONY ECM77 SHIELDRED JUMP TO PIN 2WHITE

SONY ECM144 SHIELD WHITE JUMP TO PIN 2

GUITAR SHIELD N/C AUDIO

PIN INFORMATION GROUND +Vdc AUDIO

Procedure for wiring T32 connector: Unscrew rubber boot 1 and passwire through 1 and 2. Solder wire to 3 after removing from 4 (use chartabove). Reinsert 3 to 4 with attached wire (3 is keyed to fit 4). Plug 2 into3 again (2 is keyed to 3) and crimp wire. Rescrew rubber boot 1 to 4.

Appendix A: T32 Multipin Wiring Guide and Chart

1 2 3 4

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Appendix B: Channel Plan

Low Band (MHz):

Chan.: 0 1 2 3 4 5 6 7 8 9

Grp. 0 778.375 778.875 780.125 780.750 781.500 781.750Grp. 1 778.125 778.375 779.125 779.750 781.000 781.500Grp. 2 778.250 778.500 779.000 779.875 780.500 780.875Grp. 3 778.625 778.875 779.375 780.250 780.625 781.250Grp. 4 778.750 779.500 780.000 781.125 781.375 781.750Grp. 5 779.625 780.125 780.375 780.750 781.625Grp. 6 778.125 778.250 778.375 778.500 778.625 778.750 778.875 779.000 779.125 779.250Grp. 7 779.375 779.500 779.625 779.750 779.875 780.000 780.125 780.250 780.375 780.500Grp. 8 780.625 780.750 780.875 781.000 781.825 781.250 781.375 781.500 781.625 781.750Grp. 9 781.875 782.000

Medium Band (MHz):

Chan.: 0 1 2 3 4 5 6 7 8 9

Grp. 0 801.375 801.875 803.125 803.750 804.500 804.750Grp. 1 801.125 801.375 802.125 802.750 804.000 804.500Grp. 2 801.250 801.500 802.000 802.875 803.500 803.875Grp. 3 801.625 801.875 802.375 803.250 803.625 804.250Grp. 4 801.750 802.500 803.000 804.125 804.375 804.750Grp. 5 802.625 803.125 803.375 803.750 804.625Grp. 6 801.125 801.250 801.375 801.500 801.625 801.750 801.875 802.000 802.125 802.250Grp. 7 802.375 802.500 802.625 802.750 802.875 803.000 803.125 803.250 803.375 803.500Grp. 8 803.625 803.750 803.875 804.000 804.125 804.250 804.375 804.500 804.625 804.750Grp. 9 804.875 805.000

High Band (MHz):

Chan.: 0 1 2 3 4 5 6 7 8 9

Grp. 0 856.500 857.025 857.500 858.250 858.700 857.625 857.950 858.200 858.650Grp. 1 856.500 857.025 857.500 858.250 858.700Grp. 2 854.900 854.950 855.000 855.050 855.100 855.150 855.200 855.250 855.300 855.350Grp. 3 855.400 855.450 855.500 855.550 855.600 855.650 855.700 855.750 855.800 855.850Grp. 4 855.900 855.950 856.000 856.050 856.100 856.150 856.200 856.250 856.300 856.350Grp. 5 856.400 856.450 856.500 856.550 856.600 856.650 856.700 856.750 856.800 856.850Grp. 6 856.900 856.950 857.000 857.050 857.100 857.150 857.200 857.250 857.300 857.350Grp. 7 857.400 857.450 857.500 857.550 857.600 857.650 857.700 857.750 857.800 857.850Grp. 8 857.900 857.950 858.000 858.050 858.100 858.150 858.200 858.250 858.300 858.350Grp. 9 858.400 858.450 858.500 858.550 858.600 858.650 858.700 858.750 858.800 858.850

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System Specifications:Channels 32 per band (3 bands)Frequency Type F3EModulation Type FMNoise Reduction Type Compander Distance 100 meters from visible receiver

Transmitter (H32, T32):Oscillation Type Crystal-controlled PLL frequency synthesizedModulation Type Variable reactancePre-emphasis 50 µsecAntenna 1/4 wave length; H32: integral dipole; T32: wire (permanently attached)Input (T32) MIC input with phantom power,

INST input jack (27 dB attenuator at MIC input terminal)Maximum Input Level -8 dBvBattery Duracell MN1604 9-volt alkalineBattery life 8 hours @ 25° C (without phantom power)Operating Temperature 0° C / 50° CSwitches / Controls Power ON/OFF, Audio ON/OFF

Group switch, Channel switch, Level volumeDisplay (LED) Battery Low/Mid/High (corresponds to <5.3 V / 5.3 - 7 V / >7V)Operating Voltage 9 Volts +20% / -40%Current Consumption 55 mARF Output Power 10 mWFrequency Stability ±15 kHzSpurious Ratio 1 uWDeviation 15 kHz (13 kHz - 17 kHz)T.H.D. (Overall) 2% max (@1 kHz, DEV 15 kHz)AF Frequency Response 50 Hz - 15 kHz (±3.5 dB overall)Input Impedance H32: 100 Ohms; T32: 82. k Ohms (MIC input), 8.2 k Ohms (INST input)Dimensions

H32 (without microphone head) 37 mm (Dia) x 151 (H) (1.4 x 5.9 in.) T32 102 mm (W) x 66 (H) x 24 (D) (4 x 2.6 x .9 in.)

WeightH32 (without battery, microphone head): 65 grams • 2.3 oz.T32 (without battery, input cable): 80 grams • 2.8 oz.

Receiver (M32):Oscillation Type Crystal ControlledReceiving Method Single Super Heterodyne / True DiversityDe-emphasis 50 µsecIF Frequency 10.7 MHzLocal Frequency 70 MHz Range (79 - 79.5 MHz)Antenna 1/4 Wavelength RodIn/Out 5.5 DC Inlet, Balanced Output (Switchcraft TA3F mini-XLR),

Unbalanced Output (3.5 mm phone jack), Headphone Output (3.5 mm phone jack)Display (LED) Receiver A/B (Orange), Peak (Red), RF Level / Battery Strength (3 pc)Peak LED lighting point AF output level approx. +4 dBControls Group switch, Channel switch, Audio Level switch,

Squelch volume, Headphone volume, Meter function switchOperating Temperature 0° C / 55° COperating Voltage AC adapter DC 6 - 13 Volts, 9 volts batteryCurrent Consumption >60 mA (no signal, all LEDs off)Receiving Frequency Range 778.125 - 858.850 MHzSquelch Sensitivity 17 dBµv ±4 dBT.H.D. (Overall) 1% Max (@AF 1 kHz, RF 56 dBuv)Dynamic Range 95 dB (w/IHF-A Filter)AF Frequency Response 50 Hz - 15 kHz (±3 dB overall)Audio Output Level 0 dBv ±2 dB (Maximum +9 dBV ±3 dB @ 3% THD)Audio Output Impedance 1 k Ohms max. (Unbalanced), 600 Ohms (Balanced)Headphone Output Impedance 32 OhmsBattery life 12 hours typical

Specifications

FCC Rules and Regulations

Samson wireless systems are type accepted underFCC rules parts 90, 74 and 15.

Licensing of Samson equipment is the user’sresponsibility and licensability depends on the user’s

classification, application and frequency selected.

This device complies with RSS-210 ofIndustry & Science Canada.

Operation is subject to the following two conditions:(1) this device may not cause harmful interferenceand (2) this device must accept any interferencereceived, including interference that may cause

undesired operation.